NOTE: The TV must be on a flat level surface. 1. From the front of the TV, lift the foam to access and loosen slightly, the brass Rotation Locking Screws on the Adjuster Assembly, Figure 4A. (Use a 10mm wrench.) 2. From the rear of the TV, access the black Rotation Adjustment screw and adjust so the test pattern center lines are parallel to the sides, top and bottom of the screen frame, Figure 4B. (Use a mirror to veiw the picture from the rear of the set.) 3. Tighten the two Locking Screws. Use Locktite to secure the Adjustment Screw. (If necessary, use the electrical adjustments to center the picture)